Arthashastra
सर्वेषां प्रीत्य् आरोपणम् अप्रतिषिद्धम् ॥ इति विवाह धर्मः ।
Any kind of marriage is approvable, provided it pleases all those (that are concerned in it.)
english translation
sarveSAM prIty AropaNam apratiSiddham ॥ iti vivAha dharmaH ।
hk transliteration by Sanscript